TestBase64加解密

package test;

import java.io.IOException;

import org.apache.commons.codec.binary.Base64;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class TestBase64 {

	public static void main(String[] args) {
		String str = "huxiao中文@%……&#%&*324234";
		
		System.out.println("--------------");
		System.out.println(encode(str));
		System.out.println(encode(str).length());
		System.out.println(decode(encode(str)));
		System.out.println(decode(encode(str)).length());
		System.out.println("--------------");
		System.out.println(encode2(str));
		System.out.println(encode2(str).length());
		System.out.println(decode2(encode2(str)));
		System.out.println(decode2(encode2(str)).length());
		System.out.println("--------------");
	}

	public static String encode(String str){
		return new BASE64Encoder().encode(str.getBytes());
	}

	public static String decode(String str) {
        try {  
            return new String(new BASE64Decoder().decodeBuffer(str));  
        } catch (IOException e) {  
            e.printStackTrace();  
            throw new RuntimeException("base64解码错误");  
        }  
	}
	
	/**
	 * description: 使用commons-codec加密<br>
	 * @param str
	 * @return
	 * 2010-4-9
	 * @author huxiao [e-mail]
	 */
	public static String encode2(String str) {
		return new String(new Base64().encode(str.getBytes()));
	}
	
	/**
	 * description: 使用commons-codec解密<br>
	 * @param str
	 * @return
	 * 2010-4-9
	 * @author huxiao [e-mail]
	 */
	public static String decode2(String str) {
        return new String(new Base64().decode(str.getBytes()));
	}
	
}

--------------------------------------------------

输出为

--------------
aHV4aWFv1tDOxEAloa2hrSYjJSYqMzI0MjM0
36
huxiao中文@%……&#%&*324234
23
--------------
aHV4aWFv1tDOxEAloa2hrSYjJSYqMzI0MjM0

38
huxiao中文@%……&#%&*324234
23
--------------

用commons-codec加密的是38个字节，多出了两个字节，实际上应该是换行符，并没有影响解密后的值